本文使用的是nacos+mysql的方式
大致流程:
- MySQL建立对应的库和表
- nacos配置对应的配置,以便java等应用能从nacos获取配置
- k8s部署对应的负载,负载启动以后从配置文件获取nacos地址,然后从nacos获取配置启动
MySQL 建立库和表
# 创建一个数据库
CREATE DATABASE `seata`;然后进入数据库中执行建表查询
use seata;CREATE TABLE IF NOT EXISTS `global_table`
(
`xid` VARCHAR(128) NOT NULL,
`transaction_id` BIGINT,
`status` TINYINT NOT NULL,
`application_id` VARCHAR(32),
`transaction_service_group` VARCHAR(32),
`transaction_name` VARCHAR(128),
`timeout` INT,
`begin_time` BIGINT,
`application_data` VARCHAR(2000),
`gmt_create` DATETIME,
`gmt_modified` DATETIME,
PRIMARY KEY (`xid`),
KEY `idx_status_gmt_modified` (`status` , `gmt_modified`),
KEY `idx_transaction_id` (`transaction_id`)
) ENGINE = InnoDB
DEFAULT CHARSET = utf8mb4;
-- the table to store BranchSession data
CREATE TABLE IF NOT EXISTS `branch_table`
(
`branch_id` BIGINT NOT NULL,
`xid` VARCHAR(128) NOT NULL,
`transaction_id` BIGINT,
`resource_group_id` VARCHAR(32),
`resource_id` VARCHAR(256),
`branch_type` VARCHAR(8),
`status` TINYINT,
`client_id` VARCHAR(64),
`application_data` VARCHAR(2000),
`gmt_create` DATETIME(6),
`gmt_modified` DATETIME(6),
PRIMARY KEY (`branch_id`),
KEY `idx_xid` (`xid`)
) ENGINE = InnoDB
DEFAULT CHARSET = utf8mb4;
-- the table to store lock data
CREATE TABLE IF NOT EXISTS `lock_table`
(
`row_key` VARCHAR(128) NOT NULL,
`xid` VARCHAR(128),
`transaction_id` BIGINT,
`branch_id` BIGINT NOT NULL,
`resource_id` VARCHAR(256),
`table_name` VARCHAR(32),
`pk` VARCHAR(36),
`status` TINYINT NOT NULL DEFAULT '0' COMMENT '0:locked ,1:rollbacking',
`gmt_create` DATETIME,
`gmt_modified` DATETIME,
PRIMARY KEY (`row_key`),
KEY `idx_status` (`status`),
KEY `idx_branch_id` (`branch_id`),
KEY `idx_xid` (`xid`)
) ENGINE = InnoDB
DEFAULT CHARSET = utf8mb4;
CREATE TABLE IF NOT EXISTS `distributed_lock`
(
`lock_key` CHAR(20) NOT NULL,
`lock_value` VARCHAR(20) NOT NULL,
`expire` BIGINT,
primary key (`lock_key`)
) ENGINE = InnoDB
DEFAULT CHARSET = utf8mb4;
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('AsyncCommitting', ' ', 0);
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('RetryCommitting', ' ', 0);
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('RetryRollbacking', ' ', 0);
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('TxTimeoutCheck', ' ', 0);配置nacos配置文件
在nacos对应的namespace中创建一个配置文件
seataServer.properties
内容如下
#For details about configuration items, see https://seata.io/zh-cn/docs/user/configurations.html
#Transport configuration, for client and server
transport.type=TCP
transport.server=NIO
transport.heartbeat=true
transport.enableTmClientBatchSendRequest=false
transport.enableRmClientBatchSendRequest=true
transport.enableTcServerBatchSendResponse=false
transport.rpcRmRequestTimeout=30000
transport.rpcTmRequestTimeout=30000
transport.rpcTcRequestTimeout=30000
transport.threadFactory.bossThreadPrefix=NettyBoss
transport.threadFactory.workerThreadPrefix=NettyServerNIOWorker
transport.threadFactory.serverExecutorThreadPrefix=NettyServerBizHandler
transport.threadFactory.shareBossWorker=false
transport.threadFactory.clientSelectorThreadPrefix=NettyClientSelector
transport.threadFactory.clientSelectorThreadSize=1
transport.threadFactory.clientWorkerThreadPrefix=NettyClientWorkerThread
transport.threadFactory.bossThreadSize=1
transport.threadFactory.workerThreadSize=default
transport.shutdown.wait=3
transport.serialization=seata
transport.compressor=none
#Transaction routing rules configuration, only for the client
service.vgroupMapping.default_tx_group=default #这里需要和seata里面的对应
#If you use a registry, you can ignore it
service.default.grouplist=seata.namespace.svc:8091 # 这里填写k8s中seata对应的 服务名:端口 ,格式为 server名.namespace名.svc:端口
service.enableDegrade=false
service.disableGlobalTransaction=false
#Transaction rule configuration, only for the client
client.rm.asyncCommitBufferLimit=10000
client.rm.lock.retryInterval=10
client.rm.lock.retryTimes=30
client.rm.lock.retryPolicyBranchRollbackOnConflict=true
client.rm.reportRetryCount=5
client.rm.tableMetaCheckEnable=true
client.rm.tableMetaCheckerInterval=60000
client.rm.sqlParserType=druid
client.rm.reportSuccessEnable=false
client.rm.sagaBranchRegisterEnable=false
client.rm.sagaJsonParser=fastjson
client.rm.tccActionInterceptorOrder=-2147482648
client.tm.commitRetryCount=5
client.tm.rollbackRetryCount=5
client.tm.defaultGlobalTransactionTimeout=60000
client.tm.degradeCheck=false
client.tm.degradeCheckAllowTimes=10
client.tm.degradeCheckPeriod=2000
client.tm.interceptorOrder=-2147482648
client.undo.dataValidation=true
client.undo.logSerialization=jackson
client.undo.onlyCareUpdateColumns=true
server.undo.logSaveDays=7
server.undo.logDeletePeriod=86400000
client.undo.logTable=undo_log
client.undo.compress.enable=true
client.undo.compress.type=zip
client.undo.compress.threshold=64k
#For TCC transaction mode
tcc.fence.logTableName=tcc_fence_log
tcc.fence.cleanPeriod=1h
#Log rule configuration, for client and server
log.exceptionRate=100
#Transaction storage configuration, only for the server. The file, DB, and redis configuration values are optional.
store.mode=db
#These configurations are required if the `store mode` is `db`. If `store.mode,store.lock.mode,store.session.mode` are not equal to `db`, you can remove the configuration block.
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.cj.jdbc.Driver
store.db.url=jdbc:mysql://MySQL地址:端口默认3306/seata?serverTimezone=Asia/Shanghai&useSSL=false&useUnicode=true&characterEncoding=utf8&autoReconnect=true&failOverReadOnly=false&userAffectedRows=true
store.db.user=root #数据库用户名
store.db.password=******* #数据库密码
store.db.minConn=5
store.db.maxConn=30
store.db.globalTable=global_table
store.db.branchTable=branch_table
store.db.distributedLockTable=distributed_lock
store.db.queryLimit=100
store.db.lockTable=lock_table
store.db.maxWait=5000
#Transaction rule configuration, only for the server
server.recovery.committingRetryPeriod=1000
server.recovery.asynCommittingRetryPeriod=1000
server.recovery.rollbackingRetryPeriod=1000
server.recovery.timeoutRetryPeriod=1000
server.maxCommitRetryTimeout=-1
server.maxRollbackRetryTimeout=-1
server.rollbackRetryTimeoutUnlockEnable=false
server.distributedLockExpireTime=10000
server.xaerNotaRetryTimeout=60000
server.session.branchAsyncQueueSize=5000
server.session.enableBranchAsyncRemove=false
server.enableParallelRequestHandle=false
#Metrics configuration, only for the server
metrics.enabled=false
metrics.registryType=compact
metrics.exporterList=prometheus
metrics.exporterPrometheusPort=9898k8s创建工作负载
seata 1.5.2 部署 yaml
---
apiVersion: v1
kind: Service
metadata:
name: seata
namespace: default
labels:
app.kubernetes.io/name: seata
spec:
type: ClusterIP
ports:
- port: 8091
protocol: TCP
name: http
selector:
app.kubernetes.io/name: seata
---
apiVersion: v1
kind: ConfigMap
metadata:
name: seata-config
namespace: default
data:
application.yml: |
server:
port: 7091
spring:
application:
name: seata-server #注册到nacos时的服务名
# 日志配置
logging:
config: classpath:logback-spring.xml
file:
path: /root/logs/seata
# 新增加的console控制台，
# 可通过访问http://localhost:7091进行登录，账号如下seata/seata
console:
user:
username: seata
password: seata
seata:
# Seata接入Nacos配置中心
config:
# support: file, nacos, consul, apollo, zk, etcd3
type: nacos
nacos:
server-addr: nacos.default.svc:8848 #改成对应的地址
namespace: default #改成对应的空间
group: DEFAULT_GROUP
username: nacos #对应的用户名
password: nacos #nacos密码
# 该data-id需要在nacos中进行配置
data-id: seataServer.properties #nacos中配置文件名
# Seata接入Nacos服务注册中心
registry:
# support: file, nacos, eureka, redis, zk, consul, etcd3, sofa
type: nacos
nacos:
application: seata-server
server-addr: nacos.default.svc:8848 #改成对应的地址
group: DEFAULT_GROUP
namespace: default #改成对应的空间
cluster: default #这里需要和nacos中的一致
username: nacos
password: nacos #nacos密码
security:
secretKey: SeataSecretKey0c382ef121d778043159209298fd40bf3850a017
tokenValidityInMilliseconds: 1800000
ignore:
urls: /,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-fe/public/**,/api/v1/auth/login
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: seata
namespace: default
labels:
app.kubernetes.io/name: seata
spec:
replicas: 1
selector:
matchLabels:
app.kubernetes.io/name: seata
template:
metadata:
labels:
app.kubernetes.io/name: seata
spec:
containers:
- name: seata
image: docker.io/seataio/seata-server:1.5.2
imagePullPolicy: IfNotPresent
env:
- name: SEATA_PORT
value: '8091'
ports:
- name: http
containerPort: 8091
protocol: TCP
volumeMounts:
- mountPath: /seata-server/resources/application.yml
name: seata-config
subPath: application.yml
volumes:
- configMap:
defaultMode: 420
items:
- key: application.yml
path: application.yml
name: seata-config
name: seata-config如图说明启动成功
查看服务地址
使用默认的用户名密码 seata/seata登陆
